
#include "../../include/public/util.h"
#include "../../include/common.h"

/* Table of CRC values for high-order byte */
static const uint8_t table_crc_hi[] = {
    0x00, 0xC1, 0x81, 0x40, 0x01, 0xC0, 0x80, 0x41, 0x01, 0xC0,
    0x80, 0x41, 0x00, 0xC1, 0x81, 0x40, 0x01, 0xC0, 0x80, 0x41,
    0x00, 0xC1, 0x81, 0x40, 0x00, 0xC1, 0x81, 0x40, 0x01, 0xC0,
    0x80, 0x41, 0x01, 0xC0, 0x80, 0x41, 0x00, 0xC1, 0x81, 0x40,
    0x00, 0xC1, 0x81, 0x40, 0x01, 0xC0, 0x80, 0x41, 0x00, 0xC1,
    0x81, 0x40, 0x01, 0xC0, 0x80, 0x41, 0x01, 0xC0, 0x80, 0x41,
    0x00, 0xC1, 0x81, 0x40, 0x01, 0xC0, 0x80, 0x41, 0x00, 0xC1,
    0x81, 0x40, 0x00, 0xC1, 0x81, 0x40, 0x01, 0xC0, 0x80, 0x41,
    0x00, 0xC1, 0x81, 0x40, 0x01, 0xC0, 0x80, 0x41, 0x01, 0xC0,
    0x80, 0x41, 0x00, 0xC1, 0x81, 0x40, 0x00, 0xC1, 0x81, 0x40,
    0x01, 0xC0, 0x80, 0x41, 0x01, 0xC0, 0x80, 0x41, 0x00, 0xC1,
    0x81, 0x40, 0x01, 0xC0, 0x80, 0x41, 0x00, 0xC1, 0x81, 0x40,
    0x00, 0xC1, 0x81, 0x40, 0x01, 0xC0, 0x80, 0x41, 0x01, 0xC0,
    0x80, 0x41, 0x00, 0xC1, 0x81, 0x40, 0x00, 0xC1, 0x81, 0x40,
    0x01, 0xC0, 0x80, 0x41, 0x00, 0xC1, 0x81, 0x40, 0x01, 0xC0,
    0x80, 0x41, 0x01, 0xC0, 0x80, 0x41, 0x00, 0xC1, 0x81, 0x40,
    0x00, 0xC1, 0x81, 0x40, 0x01, 0xC0, 0x80, 0x41, 0x01, 0xC0,
    0x80, 0x41, 0x00, 0xC1, 0x81, 0x40, 0x01, 0xC0, 0x80, 0x41,
    0x00, 0xC1, 0x81, 0x40, 0x00, 0xC1, 0x81, 0x40, 0x01, 0xC0,
    0x80, 0x41, 0x00, 0xC1, 0x81, 0x40, 0x01, 0xC0, 0x80, 0x41,
    0x01, 0xC0, 0x80, 0x41, 0x00, 0xC1, 0x81, 0x40, 0x01, 0xC0,
    0x80, 0x41, 0x00, 0xC1, 0x81, 0x40, 0x00, 0xC1, 0x81, 0x40,
    0x01, 0xC0, 0x80, 0x41, 0x01, 0xC0, 0x80, 0x41, 0x00, 0xC1,
    0x81, 0x40, 0x00, 0xC1, 0x81, 0x40, 0x01, 0xC0, 0x80, 0x41,
    0x00, 0xC1, 0x81, 0x40, 0x01, 0xC0, 0x80, 0x41, 0x01, 0xC0,
    0x80, 0x41, 0x00, 0xC1, 0x81, 0x40
};

/* Table of CRC values for low-order byte */
static const uint8_t table_crc_lo[] = {
    0x00, 0xC0, 0xC1, 0x01, 0xC3, 0x03, 0x02, 0xC2, 0xC6, 0x06,
    0x07, 0xC7, 0x05, 0xC5, 0xC4, 0x04, 0xCC, 0x0C, 0x0D, 0xCD,
    0x0F, 0xCF, 0xCE, 0x0E, 0x0A, 0xCA, 0xCB, 0x0B, 0xC9, 0x09,
    0x08, 0xC8, 0xD8, 0x18, 0x19, 0xD9, 0x1B, 0xDB, 0xDA, 0x1A,
    0x1E, 0xDE, 0xDF, 0x1F, 0xDD, 0x1D, 0x1C, 0xDC, 0x14, 0xD4,
    0xD5, 0x15, 0xD7, 0x17, 0x16, 0xD6, 0xD2, 0x12, 0x13, 0xD3,
    0x11, 0xD1, 0xD0, 0x10, 0xF0, 0x30, 0x31, 0xF1, 0x33, 0xF3,
    0xF2, 0x32, 0x36, 0xF6, 0xF7, 0x37, 0xF5, 0x35, 0x34, 0xF4,
    0x3C, 0xFC, 0xFD, 0x3D, 0xFF, 0x3F, 0x3E, 0xFE, 0xFA, 0x3A,
    0x3B, 0xFB, 0x39, 0xF9, 0xF8, 0x38, 0x28, 0xE8, 0xE9, 0x29,
    0xEB, 0x2B, 0x2A, 0xEA, 0xEE, 0x2E, 0x2F, 0xEF, 0x2D, 0xED,
    0xEC, 0x2C, 0xE4, 0x24, 0x25, 0xE5, 0x27, 0xE7, 0xE6, 0x26,
    0x22, 0xE2, 0xE3, 0x23, 0xE1, 0x21, 0x20, 0xE0, 0xA0, 0x60,
    0x61, 0xA1, 0x63, 0xA3, 0xA2, 0x62, 0x66, 0xA6, 0xA7, 0x67,
    0xA5, 0x65, 0x64, 0xA4, 0x6C, 0xAC, 0xAD, 0x6D, 0xAF, 0x6F,
    0x6E, 0xAE, 0xAA, 0x6A, 0x6B, 0xAB, 0x69, 0xA9, 0xA8, 0x68,
    0x78, 0xB8, 0xB9, 0x79, 0xBB, 0x7B, 0x7A, 0xBA, 0xBE, 0x7E,
    0x7F, 0xBF, 0x7D, 0xBD, 0xBC, 0x7C, 0xB4, 0x74, 0x75, 0xB5,
    0x77, 0xB7, 0xB6, 0x76, 0x72, 0xB2, 0xB3, 0x73, 0xB1, 0x71,
    0x70, 0xB0, 0x50, 0x90, 0x91, 0x51, 0x93, 0x53, 0x52, 0x92,
    0x96, 0x56, 0x57, 0x97, 0x55, 0x95, 0x94, 0x54, 0x9C, 0x5C,
    0x5D, 0x9D, 0x5F, 0x9F, 0x9E, 0x5E, 0x5A, 0x9A, 0x9B, 0x5B,
    0x99, 0x59, 0x58, 0x98, 0x88, 0x48, 0x49, 0x89, 0x4B, 0x8B,
    0x8A, 0x4A, 0x4E, 0x8E, 0x8F, 0x4F, 0x8D, 0x4D, 0x4C, 0x8C,
    0x44, 0x84, 0x85, 0x45, 0x87, 0x47, 0x46, 0x86, 0x82, 0x42,
    0x43, 0x83, 0x41, 0x81, 0x80, 0x40
};

uint16_t util_crc16(uint8_t *buffer, uint16_t buffer_length)
{
    uint8_t crc_hi = 0xFF; /* high CRC byte initialized */
    uint8_t crc_lo = 0xFF; /* low CRC byte initialized */
    unsigned int i; /* will index into CRC lookup */

    /* pass through message buffer */
    while (buffer_length--) {
        i = crc_hi ^ *buffer++; /* calculate the CRC  */
        crc_hi = crc_lo ^ table_crc_hi[i];
        crc_lo = table_crc_lo[i];
    }

    return (crc_hi << 8 | crc_lo);
}


cfg_su_t *util_cfg_su_add(cfg_su_t *header, cfg_su_t *new_node)
{
    if (new_node == NULL)
    {
        return NULL;
    }

    if (header == NULL)
    {
        header = new_node;
    }
    else
    {
        cfg_su_t *cur = header;
        while (cur->next)
        {
            cur = cur->next;
        }
        cur->next = new_node;
    }

    return header;
}

cfg_pu_t* util_cfg_pu_add(cfg_pu_t* header,cfg_pu_t* new_node)
{
    if (new_node == NULL)
    {
        return NULL;
    }

    if (header == NULL)
    {
        header = new_node;
    }
    else
    {
        cfg_pu_t *cur = header;
        while (cur->next)
        {
            cur = cur->next;
        }
        cur->next = new_node;
    }

    return header;
}

cfg_node_t* util_cfg_node_add(cfg_node_t* header,cfg_node_t* new_node)
{
    if (new_node == NULL)
    {
        return NULL;
    }

    if (header == NULL)
    {
        header = new_node;
    }
    else
    {
        cfg_node_t *cur = header;
        while (cur->next)
        {
            cur = cur->next;
        }
        cur->next = new_node;
    }

    return header;
}

cfg_temp_t* util_cfg_temp_add(cfg_temp_t* header,cfg_temp_t* new_node)
{
    if (new_node == NULL)
    {
        return NULL;
    }

    if (header == NULL)
    {
        header = new_node;
    }
    else
    {
        cfg_temp_t *cur = header;
        while (cur->next)
        {
            cur = cur->next;
        }
        cur->next = new_node;
    }

    return header;
}



//
// Name: file_read
// Func: read file info to buf
// Input: path -- file path
//        buf  -- file buf
// Output: NULL--error
//
char *util_file_read(char *path)
{
    FILE *fp;
    int fp_size;
    char *buf;

    fp = fopen(path, "rb");
    if (!fp)
    {
        printf("cannot find config file: %s!\n", path);
        return NULL;
    }
    // calculate file size
    fseek(fp, 0, SEEK_END);
    fp_size = ftell(fp) + 1;
    rewind(fp);

    // read file
    buf = (char *)malloc(sizeof(char) * fp_size);
    if (buf == NULL)
    {
        printf("file buffer malloc error!\n");
        fclose(fp);
        return NULL;
    }
    memset(buf,0,fp_size);
    int result = fread(buf, 1, fp_size, fp);
    if (result != fp_size - 1)
    {
        printf("file read error\n");
        free(buf);
        fclose(fp);
        return NULL;
    }

    fclose(fp);
    return buf;
}

int util_format_hex(char* hexstr,uint8_t* hex)
{
    // char raw_hex_str[1000] = "";
    char* raw_hex_str = (char*)malloc(strlen(hexstr) + 1);
    memset(raw_hex_str,0,strlen(hexstr) + 1);

    char *raw_ptr = raw_hex_str;
    // 去除无效字符
    while(*hexstr != '\0')
    {
        if((*hexstr >= '0' && *hexstr <= '9') || 
           (*hexstr >= 'a' && *hexstr <= 'f') || 
           (*hexstr >= 'A' && *hexstr <= 'F'))
        {
            *raw_ptr++ = *hexstr;
        }
        hexstr++;
    }

    int i = 0;

    memset(hex,0,strlen(raw_hex_str)/2);

    for(i=0;i<strlen(raw_hex_str);i++)
    {
        if(raw_hex_str[i] >= '0' && raw_hex_str[i] <= '9')
        {
            hex[i/2] = (hex[i/2]<<4) |  (raw_hex_str[i] - '0');
        }
        else if(raw_hex_str[i] >= 'a' && raw_hex_str[i] <= 'f')
        {
            hex[i/2] = (hex[i/2]<<4) |  (raw_hex_str[i] - 'a' + 10);
        }
        else if(raw_hex_str[i] >= 'A' && raw_hex_str[i] <= 'F')
        {
            hex[i/2] = (hex[i/2]<<4) |  (raw_hex_str[i] - 'A' + 10);
        }
    }

    int len = strlen(raw_hex_str)/2;
    free(raw_hex_str);
    return len;
}


void util_hex_print(uint8_t* buf,uint16_t len)
{
    int i;
    for(i=0;i<len;i++)
    {
        printf("[%02X]",buf[i]);
    }
    printf("\n");
}

// src:待分隔的字符串
// c: 分隔符
// char*[],指向字符串的指针
// maxnum：最大的分隔数量
// return：-1 -- 失败，>0 实际分隔的数量
int util_split(char* str,char c,char**buf,int max_num)
{
    if ((str == NULL) || (buf == NULL) || (max_num <= 0))
        return -1;
    
    if(!strlen(str))
        return 0;

    char *ptr = str;
    int index = 0;
    while (index < max_num)
    {
        buf[index++] = ptr;
        if(*ptr == '\0')
            break;
        while (*ptr)
        {
            if(*ptr == c)
            {
                *ptr = '\0';
                ptr++;
                break;
            }
            if ((*ptr == '\r') || (*ptr == '\n'))
            {
                *ptr = '\0';
                return index;
            }
            ptr++;
            if(*ptr == '\0')
                return index;
        }
    }

    return index;
}


int util_get_ch_cnts(cfg_su_t *su, int group_id)
{
    cfg_temp_t *temp = su->template;
    if(NULL == temp)
        return 0;
    
    int cnt = 0;
    cfg_node_t *node = temp->node_list;
    while (node)
    {
        if(node->group == group_id)
        {
            cnt++;
        }
        node = node->next;
    }
    return cnt;
}

int util_ch_init(cfg_temp_t *temp, cfg_ch_t *ch_header, int group_id)
{
    if(temp == NULL)
        return -1;

    // judge
    int i = 0;
    cfg_node_t *node = temp->node_list;
    while (node)
    {
        if (node->group == group_id)
        {
            cfg_ch_t *ch = ch_header + i;
            ch->node = node;

            i++;
        }
        node = node->next;
    }

    return 0;
}